« Reply #1 on: April 10, 2012, 10:37:57 AM »
I've never used Vertex but my Wiscos were good for about 15 hours per ring and 30 hours per piston from '96 to '02. After that, there was a noticable performance drop.
« Last Edit: December 31, 1969, 04:00:00 PM by ' »
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